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TS GraphQL Integration

TypeScript with GraphQL

TypeScript GraphQL integration types queries with Apollo or urql.

Introduction to TypeScript and GraphQL

GraphQL is a powerful query language for APIs and a runtime for executing those queries by using a type system you define for your data. TypeScript, a typed superset of JavaScript, brings static types to the otherwise dynamically-typed JavaScript. Combining TypeScript with GraphQL can greatly improve the development experience by catching errors early in the development process and providing better IDE support.

Setting Up Your Environment

To integrate TypeScript with GraphQL, you need to set up a few tools. This tutorial will guide you through integrating with Apollo Client and urql, two popular GraphQL clients.

Start by installing TypeScript and one of the GraphQL clients:

Creating a Basic GraphQL Query with Apollo

Apollo Client is a comprehensive state management library for JavaScript that enables you to manage both local and remote data with GraphQL.

Here's how you can create a simple GraphQL query using Apollo Client:

Handling GraphQL Queries with urql

urql is a GraphQL client that is lightweight and flexible. It's designed to be easy to use and customize, making it a great choice for projects of any size.

Here is an example of how to execute a query using urql:

Type Safety with GraphQL Code Generator

To achieve type safety in your GraphQL operations, you can use the GraphQL Code Generator. It automatically generates TypeScript types from your GraphQL schema, ensuring that your queries are type-checked.

Install the necessary packages:

After installing, configure the code generator by creating a codegen.yml file:

Running the Code Generator

With the configuration set up, run the code generator using the following command:

This command will generate TypeScript types based on your GraphQL schema and operations, providing you with a strongly-typed experience when writing GraphQL queries and mutations in TypeScript.

Examples